Mixing-machine.



G. T. FOOTE. MIXING MACHINE. APPLICATION FILED MAR. 30, 1909.

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G. T. FOOTE. MIXING MACHINE. APPLIOA'I'IOIf FILED MAR.'30, 1909.

Patented Nov. 15, 1910.

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CHESTER T. FQOTE, OF NUNDA, NEW YORK, ASSIGNOR T FOOTE MANUFACTURINGCOMPANY, OF NUNDA, NEW YORK, A COPARTNERSHIP.

MIXING-MACHINE.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed March 30, 1909. Serial No. 486,764.

citizen of the United States, residing at Nunda, in the county ofLivingston and State of New York, have invented certain I new and usefulImprovements in Mixing- Machines, of which the following is aspecification.

My present invention relates to a machine for mixing together thenecessary ingredients to form concrete, and it relates more particularlyto a charging-apparatus for charging the mixer with ingredients to formconcrete.

My improved charging-apparatus is illus trated in the drawings forming apart of this specification in conjunction with what is termed acontinuous mixer and it has for its primary object the provision ofmeans to elevate the ingredients which form the concrete so that theoperation of shoveling them into the elevated hopper can be dispensedwith; the charging-apparatus being so arranged that the workmen need notlift the ingredients to the height of the mixingmechanism, which wouldnot only require tiresome ph sical labor, but would also require consierable more time to charge the mixing-mechanism with a given quantity ofingredients than by the use of the apparatus employed in this invention.

Another object of my invention is the production of a simple, effective,and contlnuously-operated charging-apparatus of peculiar construction,whereby the mixingmechanism may be charged with maximum speed.

To these ends, the invention consists in the combination ofmixing-mechanism and a charging-apparatus into which the material toform the concrete is shoveled and to be charged into the mixing-machinewithout the necessity of manually lifting the material to the plane orabove the plane in which the mixing-mechanism is placed, and it alsoconsists in the construction, arrangement, and combination of parts tobe hereinafter described and particularly pointed out in the subjoinedclaims.

In the drawings,--Figure 1 is a plan view of one form of mixing-machineto which m improved charging-apparatus is applie Fig. 2 is a frontelevation of the charging apparatus with the retainer-rim removed. Fig.3 is a rear view of the charging-apparatus disconnected from themixing-machine. Fig. at is a central vertical section of thecharging-apparatus showing a portion of the mixing-machine in sectionand two of the brackets supporting said charging-apparatus. Fig. 5 is afront elevation of a modified form of charging-apparatus with theretainer-rim removed. Fig. 6 is a rear View of said modified form ofcharging-apparatus. Fig. 7 is a central vertical section taken on line7-7, Fig. 5 with the retainer-rim in a position looking in the directionof the arrow crossing said line.

Referring now to the drawings in detail, similar letters of referenceindicate corresponding partshffl'ie several figures.

A designates the mixing-machine and B, B the charging-apparatus locatedat opposite sides of the mixing-machine. The charging-apparatus B isdesigned to charge one of the ingredients or materials to form theconcrete into a feed-hopper b which delivers said material into a troughC having a feed-screw 0 adapted to feed the material forward into amixing-receptacle D provided with mixing-mechanism d. The othercharging-apparatus B is designed to charge a second ingredient into ahopper b, from which it is delivered into a trough G provided with afeed-screw 0 also adapted to feed the ingredient or material forwardinto the mixing-receptacle D.

In a plane above the hoppers b and 6 a third hopper E is provided intowhich a third ingredient, such as cement, is placed and while myimproved charging-apparatus may be used to charge this hopper withcement, the manner in which the cement is delivered, makes thisunnecessary.

Owing to the cement beingdelivered in bags, a platform F is provided onwhich a workman may stand and empty the bags into the hopper E asneeded. The hopper E discharges into a trough G provided with afeed-screw g which feeds the cement forward into the mixing-receptacle.The mixing-mechanism d and the feed-screws c, 0 and g are driven by asuitable power-me dium through the intervention oftransmission-mechanism H. The mixing-machine shown and describedprovides for mixing concrete consisting of three ingredients ormaterials such as sand, crushed stone or the" like, and cement; but forsome classes of work sand and cement only are used, in which case acharging-apparatus may be used for one material only, or a chargingapparatus for each of the materials used, and in some instances two orall of the ingredients may be charged into the mixing-mechanism with asingle charging-apparatus.

While this invention can be applied to any form of mixing-machinewhether a continuous-mixer, a batch mixer, or any other form of mixer, Ihave herein illustrated the same in connection with a continuous mixerand have applied one of my improved charging-apparatuses to each side ofthe machine, one being used for charging the mixing-mechanism with sandand the other for charging said mechanism with crushed stone or thelike.

I will now proceed to describe one of the charging-apparatuses and sincethey are both similar, a description of one will sufiice for both. Thecharging-apparatus comprises a conical shell I having secured to itsinner or small end a disk or head J provided with peripheral gear-teethforming a gear K meshing with a gear-wheel is secured to a shaft Ldriven in any suitable manner or by the transmission-mechanism H. Saidshell is supported by flanged rollers M rotatable on brackets m securedto the frame of the mixing-machine. A circular supporting-rim or track Nis secured to said shell which travels on the rollers M, thus supportingthe charging-apparatus in a secure manner. Any other suitablearrangement may be substituted for supporting and driving thecharging-apparatus. The outer or large end of the shell has anoutstanding flange O to which is secured a retaining-rim P, alsosubstantially conical and serving with the shell of thecharging-apparatus to form a substantially continuous or circularV-shaped trough into which the workmen shovel the material to bedelivered to the mixing-mechanism.

Secured to the shell I is a plurality of troughs or buckets It,substantially of U- shape in cross-section and inclined to correspond tothe inclination of the shell with their inner ends projecting throughopenings R formed in the disk of the head J. These troughs are inclinedforward when in a plane beneath the horizontal center in the shell orcasing, and rearward when in a plane above the horizontal center.

A standard S is secured to the frame of the machine and has a spindle sfastened therein which extends through the hub of the disk J and hascollars s secured thereto which lie on opposite sides of said hub, thusproviding an axis upon which the chargingapparatus may rotate and: atthesame time assisting the flanged rollers M in retaining the apparatus inproper osition. I

As clearly shown in hig, 4,-t he lowestpoint of the apparatus is closeproximity to the ground so that the workman shoveling the material intothe charging-apparatus can do so quickly and conveniently Withoutlifting the material to a height requiring very much effort. Thematerial is retained in the shell by the retaining-rim P and when saidshell rotates, the trough or buckets R carry the material upward and asthey are brought above the horizontal center of the charging-apparatusthey assume a position inclining toward the mixing-machlne and cause thematerial to move toward the inner ends ot the troughs to be dischargedfrom the apparatus as said ends pass over the hopper leading to thefeed-screw.

hen the charging-apparatus is supplied with two or more kinds ofmaterial, the material is given a preliminary mixing in the apparatus asit is carried upward to its discharging point so that it is deliveredinto the receiving hopper as a mixture.

In the modifications shown in Figs. 5 to 7, the rear end of the shell Iis left open and a gear-rim T secured to said end and adapted to meshwith a gear-wheel driven in any suitable manner. In this construction, aspider U is provided having a hub is through which the s indle 8 passes.The troughs are arrange similar to those described in the precedingfigures and discharge the material into the receiving hopper, as clearlyshown in Fig. 7

Having thus described my invention, wha I claim is,

1. A charging-apparatus for mixing-now chines comprising a shell of theshape of a truncated cone closed at its small end and provided with acircular series of gear-teeth at said end, a retaining-rim secured tothe large end of said shell, and delivery-troughs secured to the innerside of said shell and extending out through the closed end of the same.

2. A charging-apparatus for mixing-machines comprising a substantiallyconical casing, a disk closing the small end of said casing and havingperipheral teeth thereon and openings adjacent the wall of said casing,a retaining-rim inclined in a direction opposite to that of the wall ofsaid casing and secured to the large end of the latter, anddelivery-troughs secured to the inner side of said casing and extendingfrom said rim through said openings.

3. The combination with a mixing-machine, of a charging-apparatusrotatably mounted and adapted to deliver material from a low point to ahigher point and discharge the same into the mixing maohine, saidapparatus comprising a conical casing,

a conical retaining-rim inclined in a direc- In testimony whereof, Ihave atfixed my 'tion opposite that of the Wall of said casing signaturein the presence of two subscribing 10 and secured to the large end ofthe latter, Witnesses. and delivery-troughs secured to the inner side ofsaid casing which assume positions inclining toward the mixing-machinewhen Witnesses: moved to a predetermined point in the rota- G120. E.BLOOD, tion of said apparatus. FRED L. DAKE.

CHESTER T. FOOTE.

